Liquefied petroleum gas and light hydrocarbons. Determination of density or relative density. Pressure hydrometer method Ingestion-build-47786 Useful sources of information

Useful sources of information

evaluation plan

after assessment of the use of the other methods of safe temporary access given in this standard’s annexes

carbon dioxide and halon systems

Liquefied petroleum gas and light hydrocarbons. Determination of density or relative density. Pressure hydrometer method Ingestion-build-47786 Useful sources of informationWhat is BS 3993: 1966? BS 3993 specifies two types of hydrochloric acid. The standard sets out the requirements for residue on evaporation, sulphated residue on ignition, total sulphate, iron, arsenic, lead, copper, mercury, oxidizing and reducing substances. It also looks at a variety of test methods. How does it work? BS 3993 first looks at the material essentially a liquid solution of hydrogen chloride, HCI. This should be clear, ranging from